Let someone announce in every garden that there is only a single nest, while a hundred thousand perils threaten it.

Imagine a fragile bird's nest resting in a vast garden, surrounded on all sides by storms, predators, and endless dangers. The poet calls for the whole world to witness this heartbreak—how unfair it is that a hundred thousand perils target a single, defenseless sanctuary. In essence, the 'nest' represents the tender human heart or home, bearing the overwhelming weight of life's trials all on its own.